<!DOCTYPE html>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script>test(function(){});</script>
<style>
html { column-count: 2 }
#anim { -webkit-mask: url(#foo); mix-blend-mode: luminosity; animation: marquee 1s linear infinite; }
@keyframes marquee {
  0% { transform: translate(0px, 0px); }
  100% { transform: translate(100px, 0px); }
}
</style>
<div style="filter: blur(1px); visibility: hidden">
  a
  <div style="width: 700px">
    <div id='anim'></div>
  </div>
</div>
